Tamper evident bottle finish and cap assembly

Abstract

A bottle, or a generic container, for the tight storage of diverse materials, may comprise a circular lip at the top of its neck finish or opening with an inferiorly disposed smooth, slanted and curved outer surface that is punctuated by equally spaced indentations and that may extend outwards and stepwise downwards, first through a vertical and then a convex surface and finally to a smooth surface on which may be disposed a button protrusion. A tightly sealed finish may be characterized by its lip and the equally spaced protruding lugs disposed on its inner surface interacting tightly with threading and other parts of the inner part of a reusable aggregate cap which, in turn, may inextricably couple with an outer part on whose outer annular flange surface may be disposed a button marker protrusion that, because of inaccessible features and mechanisms on the cap units, may only align with the one on the outer surface of the finish or opening of an unopened bottle or container. Determination of whether a tightly capped container has been previously opened or tampered with, may quickly be performed, either visually or through touch, by checking the alignment, or not, of the externally exposed button protrusions.

Having thus described the inventions, what is claimed is: 
     
       1. An assembly of a bottle neck finish capped by an aggregate reusable cap comprising:
 a bottle neck finish having,
 a top round lip with a cross-section that transitions inwards down into a bulge and then a curved recess to ease the flow of content and to act as a tight boundary when interacting with the constricting surface of a cap; 
 
 thread lugs disposed at equal intervals a distance below the lip on the inner vertical surface of said finish that may constitute a clockwise downwards winding female thread that allows for the easy flow of content;
 equally space quadrant-sphere indentations disposed inferiorly to the lip on the outwards sloping outer surface of said finish; 
 
 a jutting spherical-shaped protrusion marker on its outer surface at the top of the neck and disposed aligned with one of the said indentations that is nearest the top thread lug on the inner surface of the neck; 
 an aggregate reusable bottle cap that can tightly cap said neck finish in a manner that incorporates tamper evident functionality and that comprises of:
 an inner cap of cylindrical form closed at its bottom end with a male thread on its lower outer surface that may directly interact with said neck finish, said inner cap including equally spaced flaps extending from its top on the outermost surface, said inner cap including a thin circumferential flap disposed under an overhang cross-section at its top, said inner cap including flexible arc-cantilevers that partially form its top opening, said inner cap including equally spaced recesses disposed under the said flexible limbs, said inner cap including equally spaced wedge protrusions disposed on its inner vertical face below the said recesses; 
 an outer cap composed of an inner and an outer cylindrical flange disposed on a flat circular top, said outer flange with outer surface comprising of equally spaced flutes and inferiorly to which a disposed spherical-shaped protrusion marker, said outer flange with a smooth inner surface that is punctuated by equally spaced recesses, wedges disposed on the undersurface of said circular top that extend from the recesses and point inwards to end at a small distance beyond the inner surface of said outer flange, equally spaced pairs of sloping wedges disposed on the underside of said circular top and on the outer connecting surface of said inner flange, equally spaced flexible arms with protruding wedges defined by apertures disposed near the top of said inner flange, equally spaced tracks defined by recesses on the outer face of said inner flange. 
 
 
     
     
       2. The assembly of  claim 1  wherein the said inner and outer caps are inextricably coupled into an aggregate cap by inserting the outer cap through its inner flange into the inner cap, or vice versa, and pressing the two together. 
     
     
       3. The assembly of  claim 1  wherein the said finish is tightly capped when said aggregate cap is clockwise screw rotated on it until the markers on it and said outer cap are aligned. 
     
     
       4. The assembly of  claim 1  wherein to uncap said capped finish, said aggregate cap is rotated anticlockwise relative to said finish to a permanent configuration in which relative displacement between said inner and outer cap is not possible and, upon recapping said finish with the unscrewed cap, evidence of previous opening or tampering is indicated by the markers on the said finish and said outer cap not aligning anymore. 
     
     
       5. The assembly of  claim 1  wherein the outermost surface of said finish on which said marker is disposed may be horizontal or sloping down from said finish.